Fiber container



FIBER CONTAINER Filed lJuly 15, 1942 L P. TOSCANO EI'AL Nl TNESS.'

Patented Mar. 7, 1944 oFFicEf FIBER CONTAINER yLouis P. Toscano and Theodore D; Toscano,

Lynbrook, N. Y.

Application July 15, 1942, Serial No. 450,958

3 Claims. (Cl. 22S-5.6)

This invention relates to improvements in liber containers for use in the packaging of foodstuffs and other moist or greasy commodities.

The primary object of the invention resides in an all fiber container having all the preservative qualifications of a tin or other metal container and which is intended to be used in lieu thereof for metal conservation purposes.

One of the important features of the invention resides in a fiber container having a novel sealed joint between its body and its end closure to prevent accidental leakage of any contents therefrom, be they liquid, solid, or powder.

'Another feature of the invention is to provide an end closure construction for moistureproof containers in which a lining sheet of moistureproof material such as Cellophane is interposed between the interlocking parts of the end closure and the side wall of the container body and securely held thereby to effect a moistureproof and greaseproof joint.

Other novel features of the invention are; to provide a moistureproof container which may be manufactured by conventional container making machines; which is simple and inexpensive of construction; and which is strong and durable to withstand the stresses to which packaging containers are subjected during packaging, shipping, and general handling.

Other features of the invention will become apparent as the specification is read in conjunction with the accompanying drawing, in which:

Figure l is a perspective view of a fiber container constructed in accordance with the invention.

Figure 2 is an enlarged vertical longitudinal sectional view on the line 2-2 of Figure 1.

Figure 3 is an enlarged detail vertical sectional view through the end wall structure.

Figure 4 is an enlarged detail vertical sectional view illustrating a modified form of the invention.

Figure 5 is a detail sectional view illustrating a further modied form of the invention.

Referring to the drawing by reference characters, and at present to that form of the invention illustrated in Figures 1 and 2, the numeral III designates an all fiber container constructed in accordance with the invention. The container I0 includes a cylindrical iiber body II, and permanent fiber end closures I2-I2.

The cylindrical bodyl II comprises an outer cylindrical fiber wall I3 andan inner cylindrical ber wall I4. The inner cylindrical wall I4 snug- 1y ts within the outer cylindrical wall I3 and is of a height shorter than the height of the wall I3 so that its ends terminate short of the plane of the corresponding ends of the outer wall I3. The cylindrical walls I3 and I4 are made of stiff cardboard which may be rolled from a blank into cylindrical form, or they may be spirally or helically wound from strip material, or they may be cut from molded fiber tube stock. The inner.

side of the inner wall I4 is provided with a moistureproof and greaseproof liner which is shown as a thin layer of moistureproof Cellophane or equivalent material I5. The Cellophane I5 constitutes a lamination of the inner wall for waterproong the outer and inner side walls I3 and I4. If desired, the inner side of the outer side wall I3 may also be laminated with a layer of Cellophane I6 as indicated in Figure 4 to lmpart added moistureproong protection to the side wall structure. y

The end wall structures I2-I2 are identical in construction, so that a description of one will suffice ior the other. Each end wall structure I2 includes a stiff cardboard disk body I'I having an integral outwardly extending annular wall or flange I8 of an external diameter to snugly telescope the end of the inner side wall I4. Formed integral with the outer edge of the wall IB is an inwardly rolled hollow convolute bead I9. The inner and outer sides of the bead extend -beyond the plane of the respective corresponding sides of the wall I8, and a portion 20 thereof snugly seats against the shoulder 2| defined by the adjacent free end edge of the inner side wall I4. The cardboard material from which the end closure is constructed is also provided with an inner liner of moistureproof material such as Cellophane 22 which is laminated thereto, so that the inner side of the disk body I1, and outer sides of the wall I8 and bead I9 are moistureproofed. An adhesive binder 23 is applied between the confronting moistureproof surfaces of the wall I8 and wall I4 to secure these parts together and cooperate to provide a tight sealed joint After the end closure I2 has been telescopically associated with an end of the cylindrical body II in the manner just described, the adjacent extending end of the outer wall I3 is rolled inwardly about the bead I9 to provide a clinching interlocking convolute bead 24. The bead 24 clinchingly interlocks with the bead I9 and has a portion inwardly from its inwardly rolled edge bearing against the shoulder portion 20 to forcibly hold the shoulder portion 20 of the bead I9 seated against the shoulder edge 2|, thus the end closure is held against any inward oroutward movement relative to the cylindrical body I I.

A container Il constructed in the manner hereinbefore described is moistureprooi and greasproof throughout. due to the inner laminations of Cellophane I6 and 22. and the sealed joint between the parts Il-i4, 20-2I, and IS-ZL To open the container Il, it is necessary that one of the end closures be mutilated by cutting through the disk body l1 and its laminated moistureproof liner 22, or by manually prying the annular bead u from engagement with the bead I9 of the end closure.

In Figure of the drawing, there is illustrated a modified form of top end closure 30 which may be used in instances where access to the interior of the container is desired without mutilating the closure. The end closure 30 includes an outer end disk 3l to the underside of which is secured an inner end disk 32. The disk 3l is of a diameter to snugly t into the outer side wall i3' and seat against the edge 2|' of the inner side wall Il', which latter wall is lined with a lamination of moistureproof material such as Cellophane I5'. 'I'he inner end disk 32 is provided with an inner liner of mcistureproof material such as Cellophane Il, which liner extends beyond the peripheral edges of the disk 32 to extend outwardly and lie against the extending end of the outer side wall i3. The disk 32 is of a diameter less than that of the disk 3| and snugly nts into the inner cylindrical wall i4. The extending end of the outer cylindrical wall I3' is rolled inwardly to provide a hollow bead 24', which bead is in pressing engagement with the outer end disk 3i and effects a tight seal between the disk 3i and the seat edge 2|. The liner material 33 is interposed between the peripheral edges of the disks 3|-32 and the adjacent surfaces of the side wall st'ructure. The disks 3I-32 have centrally alined openings 34 and 35 therein. The opening 35 is smaller in size than that of the opening 3| so that a seat 36 is provided on the disk 32 to receive a removable closure disk 31 which closes the openings 34 and 35. A sealing strip or glue label 38 is applied over the closure cap 31 to secure it in position against accidental displacement.

To open a container equipped with the end closure structure 30, the strip or label 3B is torn away from the outer end disk 3i to which it is adhesively secured, after which the closure cap 31 is pryed free of its seat and removed. The contents of the container may now be poured through the openings 35 and 34 by puncturing the Cellophane or liner disk and inverting the position of the container. If the full contents of the container are not dispensed, the cap 31 may be replaced upon the seat 3B to protect the remaining contents of the container.

In both forms of the invention set forth herein, the end edge of the inner cylindrical wall of the side wall structure provides a shoulder or seat for the end closure and against which the end closure is pressingly held by an inwardly rolled bead formed on the end portion of the outer side wall.

While we have shown and described what we consider to be the preferred embodiment ot our invention, we wish it to be understood that such changes in construction and design as come within the scope of the appended claims may be resorted to if desired without departing from the spirit of the invention.

Having thus described the invention, what we claim as new and desire to secure by Letters Patent, is:

. l. A ber container comprising outer and inner cylindrical side walls constructed ot sti!! cardboard. one end of the inner side wall terminating short of the adjacent end of the outer side wall, an end wall member comprising an annular disk body, an outwardly extending annular side wall integral with said disk body in telescoping engagement with the end of the inner side wall. an enlarged annular inwardly rolled convolute bead integral with the annular side wall of the disk body having an outwardly oifset portion seated on the adjacent end edge of the inner side wall, and an annular inwardly rolled clinchlng bead formed integral with the adjacent end of the outer side wall extending inwardly over and enclosing the first named bead, said clinching bead having a portion inwardly oi the rolled-in free edge thereof in pressing engagement with the shoulder oi the offset portion for holding the oiset portion in seated position against the adjacent end edge of the inner side wall.

2. A ber container as set forth in claim l including a lamination of moistureproof material covering the inner surface of the inner side wall, a lamination of moistureproof material covering the inner surface of the disk body and the outer surfaces of the annular side wall and enlarged bead of the end wall member, and an adhesive binder between the confronting moistureproof materials at the joint between the side wall of the end wall member and surface of the adjacent end of the inner side wall, said laminations being inwardly rolled with the respective beads.

3. A ber container comprising a cylindrical side wall composed of outer and inner laminations of stiif cardboard, one end of the inner lamination terminating short of the adjacent end of the outer lamination, the terminating edge of the inner lamination constituting an annular shouldered seat, an end wall member constructed of stii cardboard comprising an annular disk body having an integral peripheral Bange extending outwardly therefrom and arranged in snug telescoping engagement with the inner lamination, van annular inwardly rolled hollow convolute bead integral with the iiange' having an outwardly offset portion overlying the plane of the shouldered seat and being seated thereon, and an annular inwardly rolled convolute bead formed integral with the adjacent end of the outer lamination enclosing the hollow bead and disposed in overlying clinching engagement therewith and having a portion thereof in pressing engagement with the oiset portion to hold the said offset portion against the shouldered seat.

LOUIS P. TOSCANO. THEODORE D.V TOSCANO. 

